Based on 1989- 2012 agriculture data at level of HS 8 - digit, tile article studied relations between TTB in agriculture and macroeconomic factors with country pairwise fixed effects and time trend. The results show as a industry with unique features, TTB in agriculture shares the similar feature of anti- business cycle and effects at a different extent. However, regression in developing countries sample indicated more hetero- plasmy. In view of this paper focusing mainly in current situation, the possible in...